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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $657,847,560 | 133,334,813 | 133,334,813 |
| 2006 | $711,972,844 | 135,830,125 | 135,830,125 |
| 2007 | $887,658,579 | 158,046,173 | 158,046,173 |
| 2008 | $1,567,089,237 | 164,309,023 | 164,309,023 |
| 2009 | $943,237,224 | 115,698,527 | 115,698,527 |
| 2010 | $782,941,603 | 121,883,422 | 121,883,422 |
| 2011 | $929,700,742 | 156,896,553 | 156,896,553 |
Note: Quantity represents Weight in kilograms
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